System for determining a set of at least one cardio-respiratory descriptor of an individual during sleep

    公开(公告)号:US11291406B2

    公开(公告)日:2022-04-05

    申请号:US16499827

    申请日:2018-03-28

    IPC分类号: A61B5/00 A61B5/024

    摘要: A system for determining a set of at least one cardio-respiratory descriptor of an individual during sleep comprises a memory device having a first accelerometer for a thoracic position, a second accelerometer synchronized with the first and for an abdominal position, and an optional sensor (e.g., a photoplethysmographic sensor). The system also includes memory for recording accelerometer and optional sensor data; memory with a reference model; and a device for filtering accelerometer data and configured to extract low-, medium-, and high- frequency ranges. A computer is configured for determining, within the extracted frequency ranges, at least one characteristic representative of a cardio-respiratory and physiological state and the time of the extraction thereof; comparing the determined characteristic(s) with similar characteristics from the reference model; and deducing therefrom a set of at least one probable corresponding event the individual experienced during a predetermined period of time.